Anyone who may have followed my non-State Dept blog, The III Degree, would know that I have had problems with cable companies. I find that cable companies abuse you more than any other type of utility and that satellite and FIOS offer competition in theory only. I have spent countless hours on the phone or in line with cable companies arguing over charges and service, etc. With one company, I refused to pay a disputed charge for months, always deducting it from my monthly payment and informing them in writing that I disputed the charge of $12.84. Finally, I moved and closed the account with the disputed amount on there - and they sent me to collections. Assholes. After I threatened to sue the collection company for harassing me over a disputed debt, they left me alone.
So, when I was in Crystal City last year, I had Comcast (again) and was mostly satisfied with their service. They screwed up slightly when I canceled my service and I had to see them about getting $10 taken off the bill. When I went to the store, the guy removed the charge with no problem and told me to have a nice day.
What he didn't realize is that he credited the account for the whole amount, which left me with a negative balance -$1.75. Since then, for the past 10 months, they have sent me a statement informing me that I have negative balance. Each month, I happily get the statement and throw it away. For all the countless hours I spent arguing with them over money, they now waste money each month sending me the statement.